Design of Projection Optical System for Target Imaging Simulator with Long Exit Pupil Distance

다국어 초록 (Multilingual Abstract)

In order to test the recognition ability and accuracy of a target imaging simulator under the irradiation of solar stray light in a laboratory environment, it needs to be fixed on a five-axis turntable during a hardware-in-the-loop simulation test, so the optical system of the simulator should have a long exit pupil distance. This article adopts a secondary imaging method to design a projection optical system suitable for thin-film-transistor liquid crystal displays. The exit pupil distance of the entire optical system is 1,000 mm, and the final optimization results in the 400 nm–850 nm band show that the modulation transfer function (MTF) of the optical system is greater than 0.8 at the cutoff frequency of 72 lp/mm, and the distortion of each field of view of the system is less than 0.04%. Combined with the design results of the optical system, TracePro software was used to model the optical system, and the simulation of the target imaging simulator at the magnitude of −1 to +6 Mv was analyzed and verified. The magnitude er-ror is less than 0.2 Mv, and the irradiance uniformity of the exit pupil surface is greater than 90%, which meets the requirements of the target imaging simulator.

참고문헌 (Reference)

1 X. -J. Zhang, "Spectral study for star simulator on hybrid light source" 43 : 39-44, 2014

2 R. -M. Zhang, "Researched on the Fixed distributed multi-star simulator research" 20 : 70-74, 2022

3 G. Li, "Research on partitioning algorithm based on dynamic star simulator guide star catalog" 9 : 54663-54670, 2021

4 G. Li, "Research on correction method of star point position error of dynamic star simulator" 241 : 167017-, 2021

5 Z. -C. Zhao, "Optical system design of high precision dynamic star simulator" 39 : 641-644, 2018

6 K. Zhang, "Large relative aperture optical system all-day star sensor" 51 : 282-292, 2022

7 H. -X. Liu, "LED-based single star simulator with multi-color-temperature and multi-star-magnitude output" 35 : 179-186, 2015

8 J. Li, "Development and performance testing of optical system of star sensor" 33 : 217-223, 2013

9 Q. Zhang, "Design of projection optical system for dynamic star simulator with long exit pupil distance" 44 : 13-18, 2021

10 Y. Dai, "Design of optical system based on DMD for simulator with large field of view and long exit pupil distance" 41 : 891-897, 2020

11 Y. Meng, "Design of highprecision and highly dynamic star simulator based on LCOS splicing" 46 : 621-626, 2016

12 S. Liu, "Design of high-precision static star simulator with uniform sky background" 45 : 1222002-, 2016

13 F. Xue, "Athermalization design of dynamic star simulator optical system" 2 : 1-8, 2021

14 P. R. Zapevalin, "Artificial neural network for star tracker centroid computation" 71 : 3917-3925, 2023

15 C. -L. Zhao, "A kind of big emergent pupil away from, big visual field, broadband LCD type scene simulation system"

16 D. Zhao, "A diffraction correction method based on digital mirror device star simulator" 50 : 54-61, 2021